Details, datasheet, quote on part number: MAX6346-42
CategoryAnalog & Mixed-Signal Processing => Power
Description3-Pin, Ultra-low-power SC70/SOT P Reset Circuits
CompanyMaxim Integrated Products
DatasheetDownload MAX6346-42 datasheet


Features, Applications

The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/ MAX6348 microprocessor (P) supervisory circuits monitor the power supplies in P and digital systems. These devices provide excellent circuit reliability and low cost by eliminating external components and adjustments when used with 3V, 3.3V, and 5V powered circuits. These circuits perform a single function: they assert a reset signal whenever the VCC supply voltage declines below a preset threshold, keeping it asserted for at least 100ms after VCC has risen above the reset threshold. The only difference between the devices is their output. The MAX6326/MAX6346 (push-pull) and MAX6328/ MAX6348 (open-drain) have an active-low reset output. The MAX6327/MAX6347 have an active-high push-pull reset output. All of these parts are guaranteed be in the correct state for VCC down to 1V. The reset comparator is designed to ignore fast transients on VCC. Reset thresholds are factory-trimmable between 2.2V and 4.63V, in approximately 100mV increments. Twenty-one standard versions are available. Contact the factory for availability of nonstandard versions. Ultra-low supply currents (1A max for the MAX6326/ MAX6327/MAX6328) make these parts ideal for use in portable equipment. All six devices are available in space-saving SOT23 and SC70 packages.


o Ultra-Low 1A (max) Supply Current (MAX6326/MAX6327/MAX6328) o Precision Monitoring 3V, 3.3V, and 5V Power-Supply Voltages o Reset Thresholds Available from 4.63V o Fully Specified Over Temperature o 100ms (min) Power-On Reset Pulse Width o Low Cost o Available in Three Versions: Push-Pull RESET, Push-Pull RESET, and Open-Drain RESET o Power-Supply Transient Immunity o No External Components 3-Pin SC70/SOT23 Packages o Pin Compatible with MAX803/MAX809/MAX810


Computers Controllers Critical P and C Power Monitoring Intelligent Instruments Automotive Portable/Battery-Powered Equipment

The MAX6326/MAX6327/MAX6328/MAX6346/MAX6347/ MAX6348 are available in factory-set VCC reset thresholds from 4.63V, in approximately 0.1V increments. Choose the desired reset-threshold suffix from Table 1 and insert it in the blank spaces following "R." There are 21 standard versions with a required order increment of 2500 pieces. Sample stock is generally held on the standard versions only (see the Selector Guide). Required order increment is 10,000 pieces for nonstandard versions (Table 2). Contact factory for availability. All devices available in tape-and-reel only. Selector Guide appears at end of data sheet.

For free samples & the latest literature:, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769.

Terminal Voltage (with respect to GND) to +6V RESET, RESET (push-pull).........................-0.3V to (VCC + 0.3V) RESET (open to +6V Input Current (VCC).............................................................20mA Output Current (RESET, RESET).........................................20mA Rate of Rise (VCC)...........................................................100V/s Continuous Power Dissipation (TA 3-Pin SC70 (derate 2.7mW/C above 3-Pin SOT23 (derate 4mW/C above +70C)................320mW Operating Temperature to +85C Storage Temperature to +150C Lead Temperature (soldering, 10s).................................+300C

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

(VCC = full range, to +85C, unless otherwise noted. Typical values are = +25C and VCC = 3V.) (Note 1) PARAMETER VCC Range SYMBOL CONDITIONS to +85C ICC MAX632_ only, VCC = 3.0V for VTH 2.93V, VCC = 3.2V for VTH 2.93V, no load VCC 5.5V, no load = +25C Reset Threshold VTH Table to +85C Reset Threshold Tempco VCC to Reset Delay Reset Active Timeout Period RESET Output Voltage (MAX6326/MAX6328/ MAX6346/MAX6348) RESET Output Voltage (MAX6326/MAX6346) ISINK = 1.6mA, VCC > 2.1V, reset asserted VOL ISINK = 100A, VCC 1.2V, reset asserted ISOURCE = 500A, VCC 3.2V, MAX6326 only VOH ISOURCE = 800A, VCC = 4.5V, VTH 4.38V ISOURCE = 800A, VCC = VTH(MAX), VTH 4.5V VOH RESET Output Voltage (MAX6327/MAX6347) VOL ISOURCE = 500A, VCC 2.1V, reset asserted ISOURCE = 50A, VCC 1.2V, reset asserted ISINK = 1.2mA, VCC 3.2V, reset not asserted, MAX6327 only ISINK = 3.2mA, VCC 4.5V, reset not asserted, VTH 4.38V ISINK = 3.2mA, VCC = VTH(MAX), VTH 4.5V RESET Threshold Hysteresis Open-Drain RESET Output Leakage Current Note 1: Overtemperature limits are guaranteed by design and not production tested. MAX6326/MAX6327/MAX6328 MAX6346/MAX6347/MAX6348 VCC 0.8 VCC 0.8 VCC 0.8 VCC 0.8 VCC A V VTH/C VCC = VTH to (VTH 100mV) 100 VTH 1.5% VTH 2.5% MIN VTH V 0.4 TYP MAX VTH + 1.5% VTH + 2.5% UNITS V


PIN MAX6347 1 NAME GND Ground Active-Low Reset Output. RESET remains low while VCC is below the reset threshold and for at least 100ms after VCC rises above the reset threshold. RESET is open-drain on the MAX6328/MAX6348 and push-pull on the MAX6326/MAX6346. Active-High Reset Output. RESET remains high while VCC is below the reset threshold and for at least 100ms after VCC rises above the reset threshold. Supply Voltage FUNCTION MAX6328/MAX6348 1


Related products with the same datasheet
Some Part number from the same manufacture Maxim Integrated Products
MAX6346-43 3-Pin, Ultra-low-power SC70/SOT P Reset Circuits
MAX6346UR__-T 3-pin, Ultra-low-power Sc70/sot Reset Circuits
MAX6347 3-Pin, Ultra-low-power SC70/SOT P Reset Circuits
MAX6347UR__-T 3-pin, Ultra-low-power Sc70/sot Reset Circuits
MAX6348 3-Pin, Ultra-low-power SC70/SOT P Reset Circuits
MAX6348UR__-T 3-pin, Ultra-low-power Sc70/sot Reset Circuits
MAX6349 150mA, SOT23, Low-dropout Linear Regulators With Internal Microprocessor Reset Circuit
MAX6349__UT-T 150ma, Sot23, Low-dropout Linear Regulators With Internal Microprocessor Reset Circuit
MAX6349SH 150mA, SOT23, Low-dropout Linear Regulators With Internal Microprocessor Reset Circuit
MAX634C CMOS, Micropower, Inverting Switching Regulator
MAX634C/D CMOS Micropower Inverting Switching Regulator
MAX634E CMOS, Micropower, Inverting Switching Regulator
MAX634EJA CMOS Micropower Inverting Switching Regulator
MAX634M CMOS, Micropower, Inverting Switching Regulator
MAX634MJA CMOS Micropower Inverting Switching Regulator
MAX634MJA/883B Micropower Inverting Switching Regulator
MAX635 Preset/adjustable Output CMOS Inverting Switching Regulators
MAX6350 1ppm/ C, Low-Noise, +2.5V/+4.096V/+5V Voltage References

MAX4182 : Single/Dual/Quad, 270MHz, 1mA, SOT23, Current-feedback Amplifiers With Shutdown

MAX6442UTF : Low-power, Single-/dual-level Battery Monitors with Hysteresis and Integrated uP Reset

MAX9952FCCB+ : Dual Per-Pin Parametric Measurement Units The MAX9951/MAX9952 dual parametric measurement units (PMUs) feature a small package size, wide force and measurement range, and high accuracy, making the devices ideal for automatic test equipment (ATE) and other instrumentation that requires a PMU per pin

MAX9530CXV+ : Quad NTSC/PAL Decoder And Quad Audio Codec The MAX9530 is a quad-channel video decoder and audio codec for security applications. The part is specially designed to serve as the analog video front-end in multichannel DVRs (digital video recorders) and multicamera systems. The architecture supports b

MAX6482BL24AD4-T : 300mA LDO Linear Regulators With Internal Microprocessor Reset Circuit The MAX6469MAX6484 are low-dropout linear regulators with a fully integrated microprocessor reset circuit. Each is available with preset output voltages from +1.5V to +3.3V in 100mV increments and delivers up to 300mA of load c

MAX6356RVUT+T : Pmic - Supervisor Integrated Circuit (ics) Multi-Voltage Supervisor Tape & Reel (TR) 3; IC SUPERVISOR MPU SOT23-6 Specifications: Output: Push-Pull, Totem Pole ; Reset: Active Low ; Package / Case: SOT-23-6 ; Packaging: Tape & Reel (TR) ; Number of Voltages Monitored: 3 ; Reset Timeout: 100 ms Minimum ; Type: Multi-Voltage Supervisor ; Voltage - Threshold: 1.58V, 2.63V, Adj ; Operating Temperature: -40C ~

MAX4582ASE+T : Low-Voltage, CMOS Analog Multiplexers/Switches The MAX4581/MAX4582/MAX4583 are low-voltage, CMOS analog ICs configured as an 8-channel multiplexer (MAX4581), two 4-channel multiplexers (MAX4582), and three single-pole/double-throw (SPDT) switches (MAX4583).

MAX15040EWE+T : 5 A SWITCHING REGULATOR, 1030 kHz SWITCHING FREQ-MAX, PBGA16 Specifications: Configuration / Function: Buck ; Package Type: Other, 2 X 2 MM, 0.50 MM PITCH, ROHS COMPLIANT, WLP-16 ; Life Cycle Stage: ACTIVE ; IOUT: 5 amps ; VIN: 3.3 volts ; fsw: 1030 kHz ; Operating Temperature: -40 to 85 C (-40 to 185 F)

0-C     D-L     M-R     S-Z